17952754840

素因数分解:

$2^3\times 5^1\times {\mathrm{10691}}^1\times {\mathrm{41981}}^1$

素因数の和:52683

約数の個数: 32

約数和(自身を含む): 40398438960

約数和(自身を除く): 22445684120

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 10691, 21382, 41981, 42764, 53455, 83962, 85528, 106910, 167924, 209905, 213820, 335848, 419810, 427640, 839620, 1679240, 448818871, 897637742, 1795275484, 2244094355, 3590550968, 4488188710, 8976377420, 17952754840]

約数ペア:

[(1, 17952754840), (2, 8976377420), (4, 4488188710), (5, 3590550968), (8, 2244094355), (10, 1795275484), (20, 897637742), (40, 448818871), (10691, 1679240), (21382, 839620), (41981, 427640), (42764, 419810), (53455, 335848), (83962, 213820), (85528, 209905), (106910, 167924)]